lechnee



(Model.) S. C. LBGHNBR.

I CHAIN. No. 267,003. Patented Nov. 7.1882.

; we. @jgj i the side bars and its attached end bar.

UNITED STATES PATENT OFFICE.

SAMUEL C. LECHNER, OF COLUMBUS, OHIO, ASSIGNOR OF TO-THIRDS TO FRANCIS M. LECHNER, OF SAME PLACE.

CHAIN.

SPECIFICATION forming part of Letters Patent No. 267,003, dated November 7, 1882.

Application led September 1, 1882. (Model.)

To all whom it may concern:

Be it known that I, SAMUEL C. LEGHNER, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Chains, of which the following is a specification, reference being had therein to the accompanying drawings.

Figure l is a plan view of my improved chain, the links being straightened out or in working position. Fig. 2 is an edge view of Fig. l. Fig. 3 is a perspective view of one of Figa is a detached view of the other side bar.

One object of my invention is to produce a two-part link the members of which shall be of simpler construction than any heretofore constructed, and which at the same time can be cast without the use of cores.

Referring to the accompanying drawings, A B C is one of the side bars, the part A being somewhat circular in shape, and provided with an aperture to receive the end bar of an adjacent link. The partB is by preference rectangular in cross-section, and is connected with the part C by means f an angular offset, b, whereby there is formed a shoulder at c.

D is an end bar, projecting at right angles. from the expanded part C of the side bar, and

is cast in the same piece therewith, one end of this end bar being reduced in size and forming a pintle, d, to receive the opposite side bar of the link.

d is a locking-spur, projecting from the stud or pintlc d, as shown plainly in Figs. 2 and 3.' The other side bar consists ot' a practicallystraight portion, E, expanded at one end in a. circular form at F, where it is provided with a circular opening to receive the end bar of an adjacent link, and at its opposite end is connected byan oifset, c, with a similar expanded circular portion, G, provided with a central opening of a diameter corresponding to that of the external diameter of pintle d.

gis a notch formed in the wall of said opening, of such size as to pass readily over the spur d. when the side bar E F G is turned at about a right angle relative to the opposing side bar of the link, and in a vertical plane parallel therewith, in which position it (the bar E F G) can be passed freely over the spur and onto the pintle. When both side bars of g is a recess formed in the outer face ofthe 6o link'E F G, and extending about a quarter of a circle, com rnencing at notch g, and is of such depth as will receive the spur d', the end ofthe pintle heilig the meanwhile on aline with thc outer face of the part Cr of the link.

I prefer the construction of the parts of the link in the manner above describedthatis to say, with the recess g in the outer face ofthe sidebar, and with the spur d' so arranged as to lie entirely inside of said outer face ot' the side barbecause when the parts are so constructed the pintle does not project; but if such projection is not considered objectionable the recess g may be dispensed with, and the pintle, may be made long enough to bring the spur d entirely through the side bar, so that it (the spur) shall be on the outer side and bear against the outer surface of the side bar.

H H' are friction -rollers, mounted on end bars, D, to engage with the sprocket-wheel spur.

In practice I usually cast the end pintle with a web or spline extending its entire length, and afterward cutol' that portion-of the web or spline which is adjacent to the end bar, D, thus leaving theI lacking-spur cl projecting from the outer end of the pintle. 'Ihus l am enabled to cast both members of the link without using any core.

What l claim is- 'Ihe combination, with the side bar A I3 C and end bar, l), provided with pintle d and spur d', of` the bar E F G, provided with the opening to receive the pintle, land having the notch g, substantially as set forth.

In testimony whereof I afiix my signature in presence ot' two witnesses.

SAMUEL C. LECHNER. lVitnesses:

F. F. D. ALBANY, F. W. ARNOLD. 

